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With the KBT2 installed, the K2 becomes the ultimate all-band field radio. Rated at 2.9 AH, the gel-cel battery is extremely safe, and can be recharged inside the K2 continuously from the same DC supply used to power the rig at home. Power outage? No problem--you'll never miss a beat! (KBT2 not available for K2/100.)


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Battery (Battery not included in model KBT2-X.)

  • Type: PowerSonic PS-1229, 2.9 AH sealed rechargeable lead-acid
  • Dimensions: 7.01 x 1.34 x 2.52 inches (178 x 34 x 64 mm)
  • Life: >5 years (standby/float service, with occasional full discharge)
  • Temp. range: –10 to 50° C (14 to 122° F)


Charging Requirements

  • Voltage: 13.8-14.2 VDC measured at K2's DC power jack (J3)
  • Time: 12-16 hours typ. depending on discharge condition


Operating Time

  • Receive-only: >20 hours (receive current = 150 mA or less)
  • Transceive: 6-12 hours typ. (150 mA receive, 5 W transmit, transmit duty cycle 20%)


Weight: 2.5 lbs. (1.1 kg) including battery, bracket, and all components